It is a 9451. Has metal gears, and I think that might be part of the problem. I think the metal helps to transmit the vibrations straight from the engine to the heart of the servo.

I'm using that servo because it just happens to be a spare servo I had in a drawer. I didn't want to go out and buy a throttle servo.

As for the Fury: Not mine. That was Augusto Arrevalo's helicopter from about 10 years ago. I uploaded the picture so I could so somebody what happens when your clutch gets too hot.

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So the clutch bell got so hot that set the plastic on fire but the main gear didn't melt?
The fuel tank looks relatively unharmed too. Didn't the fuel ignite?

Dimitris

The servo had torque and was holding its position. It just wasn't "listening" for whatever reason.

The reason it was not listening is vibration. The throttle servo, because it is usually located closest and connected (via the throttle linkage) directly to the motor tends to suffer the most from vibration. This is again the reason that I don't feel gas helicopters will survive in coming years as the price of lithium polymer batteries continues to fall and the storage capacity of these batteries continues to increase. Gassers are a nice idea in theory since you're not paying much for fuel, but considering that you paid probably $80 for that throttle servo, and now 2 months later you need to buy another one--are you really saving any money in the long run? With an electric helicopter, so long as you don't crash, your electronics will last essentially forever.

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I'll bet you a dollar against the gassers waning in the next few years.

T.R.A.C. and FLFLFL Member

I'll bet you a dollar against the gassers waning in the next few years.

Agreed, I know I will probably be purchasing at least one more in the next year. Just put my name on the waiting list yesterday. Bet you can't guess what it was

Gassers Rule, Nitros Drool, Electrics...uhhh...Joule?

Hmm....

The 9254 that I use on throttle in my gasser is over 2 years old...And this after I took it off the tail cuz it was acting up...

Chris D. Bergen

GASSERS RULE!!!

Team- unbiased opinion.K.I.S.S principle upheld here

Gosh

I'm putting in a hour a day on my gassers (2) and SIX minutes a day on my electrics (2).

I need 10 days at the field to put the same use on my electrics as I do my gassers in a day.

I'm not replacing servos on my gassers every couple of months either.

If you use decent equipment, know what you're doing, you'll be OK.

Yes gassers are more complicated than electrics for sure. So if you can fly a gasser, you can fly anything. Its like airplanes vs helis, airplane pilots can't fly helis (some fly with 1 hand) but heli pilots can fly airplanes.

I think gassers are here to stay and grow, and you can see more and more options coming out for them from different vendors.

-=>Raja.

1005-G G26 3D Max, 3333 flts
Spectra-G G270 3D Max, 2196 flts
Whiplash-G G270 3D Max, 273 flts

And I've never had a gasser start up instantly and zip across my kitchen table taking out everything in its path ...Just sayin

Gassers Rule, Nitros Drool, Electrics...uhhh...Joule?

I'm putting in a hour a day on my gassers (2) and SIX minutes a day on my electrics (2).

That's because you don't have a good high-powered charger and a quiet generator. The best thing about bringing a generator to the field is that you can power a heater in the winter, a fan in the summer, lights at night, and a stereo whenever you feel in the mood.

I do hope I am proven wrong because the more diversity in this hobby, the better. But I am just seeing what I believe is the inevitable march towards EVERYTHING being run on electricity and the demise of the reciprocating internal combustion engine.

I bet you that by 2020, you'll be very hard pressed to find a single car on the road which is not a hybrid or completely electric--other than the occasional '66 Camaro SS taken out of the garage on a Sunday. As the chemists and material scientists struggle worldwide to figure out better ways to pack more mAh's into smaller, lighter, and more durable batteries, the cost of extremely high power batteries will fall. Yet at the same time, 2-stroke engine technology has been banned in places like California and as a result commercial development has mostly stalled. If you go to the Home Depot today, nearly half of the lawnmowers and weed-wackers are 100% electric. You didn't see that even 2 years ago.

I just don't see how millions of engineers and scientists in the USA, India, China, Japan, etc who are all competitively working to develop the next great battery can compete with a few dedicated enthusiasts who are modifying Zenoah engines.

We will see a split in the next few years. The hardcore fuel enthusiasts will use tiny-high powered turbines (since that technology is on the rise), while everyone else will go electric. But maybe I will be proven wrong.

One of my most cherished possessions (long since lost) was an old mechanical typewriter. It was full of little levers and bellcranks which needed to be oiled regularly. The ribbon needed to be inked. Half of the time, when you typed on it too fast, the keys stuck together. The other half of the time, it would only type half the letter. But it was cool, and it was a nice reminder of times gone by.

Technology continues to march forward taking everything with it. It's just the way things are.

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Here we Go : !!!!! Hog Wart's Express - Fasten your Belt and Grab the Go FAst Handle

This is again the reason that I don't feel gas helicopters will survive in coming years as the price of lithium polymer batteries continues to fall and the storage capacity of these batteries continues to increase. Gassers are a nice idea in theory since you're not paying much for fuel,

but considering that you paid probably $80 for that throttle servo, and now 2 months later you need to buy another one--are you really saving any money in the long run?

That's WHY : I run a Old Loose as a goose 3004 or maybe a even a Dodgy S-28 in which the gear train's are Nylon " Non -bearing " and the shafts are rockin loose ( I - lie ) their JUNK

If I feel generous and need some thing to do { I may put on on case top half } I lie again

When did this Gasser forum turn into a comedy hour ???

{ I would like to own a EU 2000 Also } Just to charge my truck battery or my flight box after all the Electric Guy's are done. sucking off it. But at a $1000.00 ???? to charge a Lipo ???

If the truck doesn't start I can usually get one last HIT ! off my flight box -and by the time I get home : Like the Hy'mm { ALL is Well }

Some Body Call the Hog Wart Academy

greyeagle

Some Body Call the Hog Wart Academy

How does the saying go? "If you don't have anything intelligent to say..."

You might try being a little bit respectful from time to time. Your snide commentary contributes absolutely nothing to the conversation.

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.....

Chris D. Bergen

Well

Time to go fly and put another hour on a gasser

Actually got my nitro plane today too, need to air it out and run some fuel through it so the motor bearings don't rust.

Nitro and me you say? And yes you're right no they don't go together, but I built this plane myself from a kit and I would never sell it, as its the only one I did from a kit back in winter of 95/96. Took me 160 hours to put it together not giving it away for any some of short money!

Spring is here, its 60 today, two days ago it started to warm up and I killed one mosquito that landed on my shirt. Last night they came out something FIERCE, pulled out the bug zapped and killed over a dozen plus and got bit once in the process. Damn. I liked cold weather flying better with a heated glove, alot less hassle that way!

-=>Raja.

1005-G G26 3D Max, 3333 flts
Spectra-G G270 3D Max, 2196 flts
Whiplash-G G270 3D Max, 273 flts

Sorry : Just Trying to enlighten Sage Advice and Wisdom

Especially since We Be going Nitro FLying !

Sorry it was a snide comment I thought it was extremely intelligent considering the source. Just trying to protect the Brother Hood of the GAsser's from Expert's Sorry

Her's a great bit of Carnal Knowledge for Nitro Flying

Justin Stuart

rrMaster
Plano, Texas

If you want to remove all of the water from your fuel, you'd have to do several freeze-pour cycles. This is a process called "fractional freezing". It works similar to fractional distillation, but would be more appropriate with very heat sensitive compounds.

You definitely can't freeze out all of the water on the first try.

Cheaper however would be silica gel. You should be able to find it in the flower drying section of an arts/crafts store. You might even find a brand of kitty litter with it as the main ingredient. Bake the silica gel in the oven for an hour and then pour it into your fuel. The silica should preferentially bind the water. Then filter it out. This should make your fuel very pure.

greyeagle

Is that an RRMaster debater?

Team- unbiased opinion.K.I.S.S principle upheld here

Sorry it was a snide comment I thought it was extremely intelligent considering the source. Just trying to protect the Brother Hood of the GAsser's from Expert's Sorry

Her's a great bit of Carnal Knowledge for Nitro Flying

I'm sorry Doctor GreyEagle, but I forgot exactly what kind of professional education and training you have? I assume you must have a chemistry degree? Based upon your comment, I assume you must be a PhD trained chemist from a highly acclaimed university. University of Iowa, right? Or did you choose an Ivy League university? I can't remember. But either way, with your superior knowledge, education, training, and credentials, you are certainly able to debate with me the selective adsorption characteristics of molecular sieves vs silica gel, the polar adsorption characteristics of water vs. methanol vs. nitromethane, and the benefits of fractional freezing vs. vacuum distillation with regards to the isolation and purification of thermally sensitive compounds?

Or wait? Were you the guy who dropped out of high school to go work in a machine shop? I can't remember?

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Heck No !

I work for Little Caesar's !!!!!

I'm :

{ THE AIR GIT TAR GUY ON THE CORNER WITH THE CARDBOARD GUITAR }

Sure Hope:

Theirs NO lives involved in-which common sense and discernment are required.

greyeagle

probably a fair assessment that electric power will eventually be the main stream solution.

but it hasn't happened yet and probably won't happen in the next coupla years. Regardless of battery costs durable ESC's and motors are still hundreds of dollars and when you add up all the costs, cheaper alternatives will be around until they don't make sense anymore.

just WAIT until all that lithium is discovered in landfills!

If you're not flying a gasoline helicopter
You're paying 10 times too much for fuel!!

just WAIT until all that lithium is discovered in landfills!

Actually compared to lead, cadmium, nickel, and even zinc, lithium is relatively nontoxic. In fact, lithium chloride was once used as a "salt substitute" for cardiac patients the same way that potassium chloride is used today. So if you had to decide which high reduction potential metal you wanted potentially leaching from landfills into drinking water, most environmentalists would probably choose lithium. That being said, the next "electric revolution" in battery technology is still at least a few years away. Carbon nanotubes and other exotic compounds which are being tested in research laboratories are still very expensive to produce. However I am quite certain that $4+ a gallon gas is going to catalyze the rate of research in these fields.

I'm still holding out for the guy who figures out how to put a Honda 4-stroke generator motor into a helicopter using rubber mounts. Considering that Honda generators have been known to last for 40,000 hours, imagine how many flights you could get out of that machine. Not to mention those motors are quiet, efficient, and very smooth. You certainly couldn't do 3D with it, but there is only so much high intensity flying you can do with an electric helicopter anyways before your concentration is shot.

But still, from a long term perspective, I don't think anyone will be able to compete with the electric vehicle. I think the technology will be here eventually, and it will revolutionize everything we drive, fly, and do.

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